Junk yard Caddilac alt, 100 amp, $25


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Posted by Chriscase on Friday, January 09, 2009 at 21:43:12 :

In Reply to: Re: Alternator posted by Arthur P. Bloom on Friday, January 09, 2009 at 17:21:08 :

Big SOB. I don't know about low speed out-put, but are you really running at that low of a spseed t6hat the alts don't work?

I LIKE the 3-wire system. Even with my white wire left unhooked. I guess old/rebuilt alts have enough residual magnetism in the rotors to get going, new ones need a bit of juice. Or go ahead and hook the white wire to an idiot light, in addition to your the ammeter.

Hey, the one wire system might be part of the problems in these current discussions. Since they don't use the red wire going to the battery, the one-wire alts make 14.2v at the alt, which may weaken through old wiring, not put 14.2 at the battery. The red wire makes the 14.2v AT THE BATTERY, regardless of the resistance in the wiring.

I don't know how much extra a one-wire deficient alt costs compared to a high-output 3-wire form the junk yard.



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